Bobbin.



Patented may 15, I900. E. E. naunmcx.

BOBBIN.

(Application filed July 16, 1899.)

(Ila Modal.)

- Z? In vsntor u/6% 5% Witnesses. I /O Attys.

PATENT OFFICE.

ELI n. IIENDRIOK, or CARBONDALE, PENNSYLVANIA.

BOBBIN.

SPECIFICATION forming part of Letters Patent No. 649, 38, dated May1900- Application filed July 15, 1899. Serial No. 723,916. (No model.)

To all whom it may concern:

Be it known that I, ELI E. HENDRiOK, a citizen of the United States,residing at Carbon dale, in the county of Lackawanna and State ofPennsylvania, have invented a certain new and useful Improvement inBobbins, of which the following is a description.

My invention relates to various new and useful improvements in bobbins;and the object of the invention is to simplify the construction,increase the efficiency, and reduce the cost of manufacture of suchdevices.

I purpose applying the invention especially to bobbins constructedwholly or partly of hard fiber.

In order that the invention may be better understood, attention isdirected to the accompanying drawings, forming a part of thisspecification, and in which Figure 1 is a longitudinal section of oneform of my improvedbobbin, and Fig. 2 a similar view of another formthereof.

In both of the above views corresponding parts are represented by thesame numerals of reference.

1 represents a tubular body made of wood, metal, or any other suitablematerial, and 2 3 the circular heads thereof. Preferably the ends ofthebody 1 are seated in annular recesses 4 in said heads.

5 is a mandrel or core located within the body 1 and havingscrew-threaded ends 6 6, which engage screw-threaded openings formedcentrally in the heads 2 3, as shown. The mandrel or core 5 is providedwith a bore (here shown as tapered, although it may be straight) for theproper mounting of the bobbin, as

- will be understood.

In assembling the parts of the bobbin one of the heads is first engagedwith one end of the core or mandrel 5. The body 1 is then inserted inplace over the said core or mandrel and the other head is screwed uponthe other end of said core, whereby the body 1 will be clamped tightlybetween said heads. Dis placement of the heads relative to the body isprevented in any suitable way--as, for instance, by a pin 7 inserted inan opening extending through the head and into the body, as shown, saidopening being formed after the parts have been assembled or by a pin,such as shown in dotted lines at 11, inserted in an opening extendingthrough the head and into the core or mandrel 5. If desired, the body 1may be formed with a rib 8, fitting over the core or mandrel 5 and bymeans of which the body will be very materially stiffened at its centralpart.

The modification shown in Fig. 2 is practically identical with that justdescribed, with the exception that the rib 8 is omitted, and the core ormandrel 5 is provided at its ends with enlarged portions 9 9, which arescrewthreaded into the two heads. With this modification also theenlarged portions of the core or mandrel 5 for facility of adjustmentare made to extend beyond the heads 2 3 at 10, as shown.

A bobbin made in accordance with my present invention can be constructedvery cheaply and will be light and durable in use.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is as follows:

1. As a new article of manufacture, a bobbin provided with a cylindricalbody, a head at each end of said body, a hollow core or mandrel engagingthe heads by screw-threaded connections, whereby the heads will beclamped tightly in position against the ends of the body, and means forpreventing the heads from rotating with respect to the body, wherebydisengagement of the heads from the screw-threaded ends of the core ormandrel will be prevented, substantially as set forth.

2. As a new article of manufacture, abobbin provided with a body, a headat each end of said body, a hollow core or mandrel engaged with saidheads and clamping the same upon the body,and a pin passing through eachhead into the body for preventing the disengagement of the body fromsaid core or mandrel, substantially as set forth.

and having enlarged ends which are screwthreaded into said heads, saidenlarged ends extending beyond the heads, and a pin passing through eachhead into the body for preventing said heads from being unscrewed,substantially as set forth.

This specification signed and witnessed this 10th day of July, 1899.

ELI E. HENDRICK.

WVitnesses:

W. T. OOLVILLE, L. A. BASSETT.

